Not that good I am afraid, When I purchased the battery the inspection glass had no colour (Usually green) I asked the bloke if the batteries are fully charged and he replied yes so I just assumed it was too dark to see in the shop, As soon as I got home I put my CTek smart charger on the battery and now 20 hours later it still has not charged, One problem with the ctek is that is only shows fully charged, no indication of part charged, so without going out in the rain and swapping batteries I have no idea if it works at all, Not good news as ECParts are not open on a Sunday and hopefully I don't know if the old battery is good enough go to work tomorrow.......Just hope the rain stops